Research generally supports the idea that people with a(n) are more likely to experience symptoms of depression and other psychological disorders.

answer; a group made up of people from difference cultures;

answer; (b) limited resource to satisfy virtually unlimited wants;

i believe the answer is: true

our brain need to reach a certain level of development   before it could interpret and understood sound with high difficulties. to proof this, we just need to pay attention in musical preference between children and adults. it is far less likely that children would enjoy things such as orchestra or rock band as much as adults due to the difference in this ability.

c) james chadwick is the answer my friend